CAS号查询库

CAS号是公开的化学物质信息的最权威的集合。CAS号涵盖从1957年至今的科学文献中确定的物质，其他物质可追溯到20世纪初。它也称CAS编号(CAS Registry Number，或称CAS Number，CAS Rn，CAS #)，又称CAS登录号或CAS登记号码，是某种物质(化合物、高分子材料、生物序列(Biological sequences)、混合物或合金)的唯一的数字识别号码。美国化学会的下设组织化学文摘社(Chemical Abstracts Service，简称CAS)负责为每一种出现在文献中的物质分配一个CAS编号，其目的是为了避免化学物质有多种名称的麻烦，使数据库的检索更为方便。如今几乎所有的化学数据库都允许用CAS编号检索。

名称	英文名	物理化学性质	CAS号	分子式
2-(4-fluorophenyl)-N-(4-(N-(thiazol-2-yl)sulfamoyl)phenyl)-2H-tetrazole-5-carboxamide	2-(4-fluorophenyl)-N-(4-(N-(thiazol-2-yl)sulfamoyl)phenyl)-2H-tetrazole-5-carboxamide	分子量：445.5 密度：N/A 沸点：N/A 熔点：N/A	1396879-47-2	C₁₇H₁₂FN₇O₃S₂
(4-(cyclopropylsulfonyl)piperazin-1-yl)(2-(4-fluorophenyl)-2H-tetrazol-5-yl)methanone	(4-(cyclopropylsulfonyl)piperazin-1-yl)(2-(4-fluorophenyl)-2H-tetrazol-5-yl)methanone	分子量：380.4 密度：N/A 沸点：N/A 熔点：N/A	1396781-59-1	C₁₅H₁₇FN₆O₃S
2-(4-chlorophenyl)-N-(3-phenylpropyl)-2H-tetrazole-5-carboxamide	2-(4-chlorophenyl)-N-(3-phenylpropyl)-2H-tetrazole-5-carboxamide	分子量：341.8 密度：N/A 沸点：N/A 熔点：N/A	1396792-10-1	C₁₇H₁₆ClN₅O
2-(4-chlorophenyl)-N-(thiazol-2-yl)-2H-tetrazole-5-carboxamide	2-(4-chlorophenyl)-N-(thiazol-2-yl)-2H-tetrazole-5-carboxamide	分子量：306.73 密度：N/A 沸点：N/A 熔点：N/A	1396792-16-7	C₁₁H₇ClN₆OS
2-(4-chlorophenyl)-N-(pyridin-4-ylmethyl)-2H-tetrazole-5-carboxamide	2-(4-chlorophenyl)-N-(pyridin-4-ylmethyl)-2H-tetrazole-5-carboxamide	分子量：314.73 密度：N/A 沸点：N/A 熔点：N/A	1396880-50-4	C₁₄H₁₁ClN₆O
N-[2-(3,5-dimethyl-1H-pyrazol-1-yl)ethyl]-2-[4-(trifluoromethyl)phenyl]-2H-1,2,3,4-tetrazole-5-carboxamide	N-[2-(3,5-dimethyl-1H-pyrazol-1-yl)ethyl]-2-[4-(trifluoromethyl)phenyl]-2H-1,2,3,4-tetrazole-5-carboxamide	分子量：379.34 密度：N/A 沸点：N/A 熔点：N/A	1396625-68-5	C₁₆H₁₆F₃N₇O
(4-hydroxypiperidin-1-yl)(2-(4-(trifluoromethyl)phenyl)-2H-tetrazol-5-yl)methanone	(4-hydroxypiperidin-1-yl)(2-(4-(trifluoromethyl)phenyl)-2H-tetrazol-5-yl)methanone	分子量：341.29 密度：N/A 沸点：N/A 熔点：N/A	1396844-28-2	C₁₄H₁₄F₃N₅O₂
[(3-Phenyl-5-isoxazolyl)methyl]amine oxalate hydrate	[(3-Phenyl-5-isoxazolyl)methyl]amine oxalate hydrate	分子量：282.25 密度：N/A 沸点：N/A 熔点：N/A	2368828-63-9	C₁₂H₁₄N₂O₆
N-(2-methoxybenzyl)-2-(4-(trifluoromethyl)phenyl)-2H-tetrazole-5-carboxamide	N-(2-methoxybenzyl)-2-(4-(trifluoromethyl)phenyl)-2H-tetrazole-5-carboxamide	分子量：377.32 密度：N/A 沸点：N/A 熔点：N/A	1396626-41-7	C₁₇H₁₄F₃N₅O₂
N-(furan-2-ylmethyl)-2-(4-(trifluoromethyl)phenyl)-2H-tetrazole-5-carboxamide	N-(furan-2-ylmethyl)-2-(4-(trifluoromethyl)phenyl)-2H-tetrazole-5-carboxamide	分子量：337.26 密度：N/A 沸点：N/A 熔点：N/A	1396849-33-4	C₁₄H₁₀F₃N₅O₂
2-(2,6,7-Trimethyl-1H-indol-3-yl)ethanamine dihydrate	2-(2,6,7-Trimethyl-1H-indol-3-yl)ethanamine dihydrate	分子量：238.33 密度：N/A 沸点：N/A 熔点：N/A	1609401-31-1	C₁₃H₂₂N₂O₂
N-(3-acetylphenyl)-2-(4-(trifluoromethyl)phenyl)-2H-tetrazole-5-carboxamide	N-(3-acetylphenyl)-2-(4-(trifluoromethyl)phenyl)-2H-tetrazole-5-carboxamide	分子量：375.30 密度：N/A 沸点：N/A 熔点：N/A	1396626-64-4	C₁₇H₁₂F₃N₅O₂
N-(pyridin-4-yl)-2-(4-(trifluoromethyl)phenyl)-2H-tetrazole-5-carboxamide	N-(pyridin-4-yl)-2-(4-(trifluoromethyl)phenyl)-2H-tetrazole-5-carboxamide	分子量：334.26 密度：N/A 沸点：N/A 熔点：N/A	1396798-86-9	C₁₄H₉F₃N₆O
(4-(methylsulfonyl)piperazin-1-yl)(2-(4-(trifluoromethyl)phenyl)-2H-tetrazol-5-yl)methanone	(4-(methylsulfonyl)piperazin-1-yl)(2-(4-(trifluoromethyl)phenyl)-2H-tetrazol-5-yl)methanone	分子量：404.37 密度：N/A 沸点：N/A 熔点：N/A	1396782-20-9	C₁₄H₁₅F₃N₆O₃S
N-(3-(2-methylthiazol-4-yl)phenyl)-2-(4-(trifluoromethyl)phenyl)-2H-tetrazole-5-carboxamide	N-(3-(2-methylthiazol-4-yl)phenyl)-2-(4-(trifluoromethyl)phenyl)-2H-tetrazole-5-carboxamide	分子量：430.4 密度：N/A 沸点：N/A 熔点：N/A	1396851-82-3	C₁₉H₁₃F₃N₆OS
N-(2-methoxyphenethyl)-2-(4-(trifluoromethoxy)phenyl)-2H-tetrazole-5-carboxamide	N-(2-methoxyphenethyl)-2-(4-(trifluoromethoxy)phenyl)-2H-tetrazole-5-carboxamide	分子量：407.3 密度：N/A 沸点：N/A 熔点：N/A	1396792-86-1	C₁₈H₁₆F₃N₅O₃
4-(Cyclohexyloxy)-2-iodophenol	4-(Cyclohexyloxy)-2-iodophenol	分子量：318.15 密度：N/A 沸点：N/A 熔点：N/A	1243348-30-2	C₁₂H₁₅IO₂
N-(3-bromophenyl)-2-(4-(trifluoromethoxy)phenyl)-2H-tetrazole-5-carboxamide	N-(3-bromophenyl)-2-(4-(trifluoromethoxy)phenyl)-2H-tetrazole-5-carboxamide	分子量：428.16 密度：N/A 沸点：N/A 熔点：N/A	1396791-99-3	C₁₅H₉BrF₃N₅O₂
N-(2-methylbenzo[d]thiazol-5-yl)-2-(4-(trifluoromethoxy)phenyl)-2H-tetrazole-5-carboxamide	N-(2-methylbenzo[d]thiazol-5-yl)-2-(4-(trifluoromethoxy)phenyl)-2H-tetrazole-5-carboxamide	分子量：420.4 密度：N/A 沸点：N/A 熔点：N/A	1396882-89-5	C₁₇H₁₁F₃N₆O₂S
2-(4-bromophenyl)-N-(4-butylphenyl)-2H-tetrazole-5-carboxamide	2-(4-bromophenyl)-N-(4-butylphenyl)-2H-tetrazole-5-carboxamide	分子量：400.3 密度：N/A 沸点：N/A 熔点：N/A	1396845-47-8	C₁₈H₁₈BrN₅O
N-(4-bromo-2-fluorophenyl)-6-(1H-imidazol-1-yl)pyridazine-3-carboxamide	N-(4-bromo-2-fluorophenyl)-6-(1H-imidazol-1-yl)pyridazine-3-carboxamide	分子量：362.16 密度：N/A 沸点：N/A 熔点：N/A	1396628-16-2	C₁₄H₉BrFN₅O
N-methyl-1-(3-pyridinyl)ethanamine oxalate	N-methyl-1-(3-pyridinyl)ethanamine oxalate	分子量：226.23 密度：N/A 沸点：N/A 熔点：N/A	1255718-34-3	C₁₀H₁₄N₂O₄
N-(2,3-dichlorophenyl)-6-(2-methyl-1H-imidazol-1-yl)pyridazine-3-carboxamide	N-(2,3-dichlorophenyl)-6-(2-methyl-1H-imidazol-1-yl)pyridazine-3-carboxamide	分子量：348.2 密度：N/A 沸点：N/A 熔点：N/A	1396782-94-7	C₁₅H₁₁Cl₂N₅O
N-(2-(methylthio)phenyl)-6-(1H-pyrazol-1-yl)pyridazine-3-carboxamide	N-(2-(methylthio)phenyl)-6-(1H-pyrazol-1-yl)pyridazine-3-carboxamide	分子量：311.4 密度：N/A 沸点：N/A 熔点：N/A	1351652-46-4	C₁₅H₁₃N₅OS
N-benzyl-N-methyl-6-(1H-pyrazol-1-yl)pyridazine-3-carboxamide	N-benzyl-N-methyl-6-(1H-pyrazol-1-yl)pyridazine-3-carboxamide	分子量：293.32 密度：N/A 沸点：N/A 熔点：N/A	1396629-38-1	C₁₆H₁₅N₅O
1-Tert-butyl-2-cyclopropoxy-3-ethylbenzene	1-Tert-butyl-2-cyclopropoxy-3-ethylbenzene	分子量：218.33 密度：N/A 沸点：N/A 熔点：N/A	1243369-42-7	C₁₅H₂₂O
Tert-butyl 5-iodopyrrolo[2,3-d]pyrimidine-7-carboxylate	Tert-butyl 5-iodopyrrolo[2,3-d]pyrimidine-7-carboxylate	分子量：345.14 密度：N/A 沸点：N/A 熔点：N/A	1384953-52-9	C₁₁H₁₂IN₃O₂
3-Amino-6-bromo-8-methylquinoline dihydrochloride	3-Amino-6-bromo-8-methylquinoline dihydrochloride	分子量：310.01 密度：N/A 沸点：N/A 熔点：N/A	1296951-10-4	C₁₀H₁₁BrCl₂N₂
4-[[2-Methoxycarbonyl-4-oxo-1-phenyl-7-(trifluoromethyl)-1,8-naphthyridin-3-yl]methyl]benzoic acid	4-[[2-Methoxycarbonyl-4-oxo-1-phenyl-7-(trifluoromethyl)-1,8-naphthyridin-3-yl]methyl]benzoic acid	分子量：482.4 密度：N/A 沸点：N/A 熔点：N/A	1402345-29-2	C₂₅H₁₇F₃N₂O₅
Ethyl 4-(4-chlorophenyl)-5-methyl-2-(2-(4-methylpiperidin-1-yl)acetamido)thiophene-3-carboxylate oxalate	Ethyl 4-(4-chlorophenyl)-5-methyl-2-(2-(4-methylpiperidin-1-yl)acetamido)thiophene-3-carboxylate oxalate	分子量：525.0 密度：N/A 沸点：N/A 熔点：N/A	1351619-84-5	C₂₄H₂₉ClN₂O₇S
4-[3-Oxo-3-(2-phenylamino-pyridin-3-yl)-propyl]-benzoic acid methyl ester	4-[3-Oxo-3-(2-phenylamino-pyridin-3-yl)-propyl]-benzoic acid methyl ester	分子量：360.4 密度：N/A 沸点：N/A 熔点：N/A	1392482-82-4	C₂₂H₂₀N₂O₃
N-Acetyl 4-bromo-3-fluoro-6-methyl-2-nitroaniline	N-Acetyl 4-bromo-3-fluoro-6-methyl-2-nitroaniline	分子量：291.07 密度：N/A 沸点：N/A 熔点：N/A	1820604-24-7	C₉H₈BrFN₂O₃
N-(cyanomethyl)-5-methyl-2-[3-(trifluoromethyl)phenyl]-1,3-oxazole-4-carboxamide	N-(cyanomethyl)-5-methyl-2-[3-(trifluoromethyl)phenyl]-1,3-oxazole-4-carboxamide	分子量：309.24 密度：N/A 沸点：N/A 熔点：N/A	1797749-24-6	C₁₄H₁₀F₃N₃O₂
2-((4-Fluorobenzyl)thio)-5-(piperazin-1-yl)-1,3,4-thiadiazole 2,2,2-trifluoroacetate	2-((4-Fluorobenzyl)thio)-5-(piperazin-1-yl)-1,3,4-thiadiazole 2,2,2-trifluoroacetate	分子量：424.4 密度：N/A 沸点：N/A 熔点：N/A	1351596-99-0	C₁₅H₁₆F₄N₄O₂S₂
Methyl-3-((6-methoxy-3-nitropyridin-2-yl)amino)-2-methylpropanoate	Methyl-3-((6-methoxy-3-nitropyridin-2-yl)amino)-2-methylpropanoate	分子量：269.25 密度：N/A 沸点：N/A 熔点：N/A	1407834-89-2	C₁₁H₁₅N₃O₅
1-(2-morpholino-2-oxoethyl)-1H-indol-3-yl carbamimidothioate hydroiodide	1-(2-morpholino-2-oxoethyl)-1H-indol-3-yl carbamimidothioate hydroiodide	分子量：446.3 密度：N/A 沸点：N/A 熔点：N/A	1351584-65-0	C₁₅H₁₉IN₄O₂S
1-Cyclopropyl-2-(piperazin-1-yl)ethanone oxalate	1-Cyclopropyl-2-(piperazin-1-yl)ethanone oxalate	分子量：258.27 密度：N/A 沸点：N/A 熔点：N/A	1351643-19-0	C₁₁H₁₈N₂O₅
Tert-butyl 4-[(2,6-difluorophenyl)methyl]piperazine-1-carboxylate	Tert-butyl 4-[(2,6-difluorophenyl)methyl]piperazine-1-carboxylate	分子量：312.35 密度：N/A 沸点：N/A 熔点：N/A	1393442-57-3	C₁₆H₂₂F₂N₂O₂
T-Butyl N-[2-(2-chloro-2-phenylacetamido)ethyl]carbamate	T-Butyl N-[2-(2-chloro-2-phenylacetamido)ethyl]carbamate	分子量：312.79 密度：N/A 沸点：N/A 熔点：N/A	1420800-29-8	C₁₅H₂₁ClN₂O₃
4-[(2-isopropyl-1H-imidazol-1-yl)methyl]piperidine dihydrochloride	4-[(2-isopropyl-1H-imidazol-1-yl)methyl]piperidine dihydrochloride	分子量：280.23 密度：N/A 沸点：N/A 熔点：N/A	1351642-31-3	C₁₂H₂₃Cl₂N₃
6-ethyl-3-propylbenzo[d]thiazol-2(3H)-imine hydroiodide	6-ethyl-3-propylbenzo[d]thiazol-2(3H)-imine hydroiodide	分子量：348.25 密度：N/A 沸点：N/A 熔点：N/A	1351642-40-4	C₁₂H₁₇IN₂S
methyl 2-(4-ethoxy-2-iminobenzo[d]thiazol-3(2H)-yl)acetate hydrobromide	methyl 2-(4-ethoxy-2-iminobenzo[d]thiazol-3(2H)-yl)acetate hydrobromide	分子量：347.23 密度：N/A 沸点：N/A 熔点：N/A	1351611-93-2	C₁₂H₁₅BrN₂O₃S
4-(2-(4-Bromophenoxy)ethyl)morpholine hydrochloride	4-(2-(4-Bromophenoxy)ethyl)morpholine hydrochloride	分子量：322.62 密度：N/A 沸点：N/A 熔点：N/A	302962-86-3	C₁₂H₁₇BrClNO₂
4-(Aminomethyl)-1-(4-chlorophenyl)pyrrolidin-2-one hydrochloride	4-(Aminomethyl)-1-(4-chlorophenyl)pyrrolidin-2-one hydrochloride	分子量：261.14 密度：N/A 沸点：N/A 熔点：N/A	1177282-58-4	C₁₁H₁₄Cl₂N₂O
1-{[1-(4-chlorophenyl)-1H-tetrazol-5-yl]methyl}piperazine dihydrochloride	1-{[1-(4-chlorophenyl)-1H-tetrazol-5-yl]methyl}piperazine dihydrochloride	分子量：351.7 密度：N/A 沸点：N/A 熔点：N/A	1351632-73-9	C₁₂H₁₇Cl₃N₆
7-(piperazin-1-yl)-3-(p-tolyl)-3H-[1,2,3]triazolo[4,5-d]pyrimidine hydrochloride	7-(piperazin-1-yl)-3-(p-tolyl)-3H-[1,2,3]triazolo[4,5-d]pyrimidine hydrochloride	分子量：331.80 密度：N/A 沸点：N/A 熔点：N/A	1351584-89-8	C₁₅H₁₈ClN₇
1,3-Dibenzylpiperazine dimaleate	1,3-Dibenzylpiperazine dimaleate	分子量：498.5 密度：N/A 沸点：N/A 熔点：N/A	1351664-16-8	C₂₆H₃₀N₂O₈
T-Butyl Z-DL-alaninamide	T-Butyl Z-DL-alaninamide	分子量：278.35 密度：N/A 沸点：N/A 熔点：N/A	1313254-52-2	C₁₅H₂₂N₂O₃
4-((2-(Methoxycarbonyl)-1,4-dihydro-4-oxo-1-phenyl-1,8-naphthyridin-3-yl)methyl)benzoic acid	4-((2-(Methoxycarbonyl)-1,4-dihydro-4-oxo-1-phenyl-1,8-naphthyridin-3-yl)methyl)benzoic acid	分子量：414.4 密度：N/A 沸点：N/A 熔点：N/A	1392482-84-6	C₂₄H₁₈N₂O₅
Methyl 4-(chlorosulfonyl)-6-methoxypyridine-2-carboxylate	Methyl 4-(chlorosulfonyl)-6-methoxypyridine-2-carboxylate	分子量：265.67 密度：N/A 沸点：N/A 熔点：N/A	1393560-70-7	C₈H₈ClNO₅S